This upcoming weekend, the yearly AES Convention in San Francisco (Audio Engineering Society). Many recording professionals attend this convention, and even though Ableton is not exhibiting there, they may be wanting to get some leaks out prior to the show to offset the increased use of ProTools 10.

January 26-29, the yearly NAMM show in Los Angeles. Ableton has shown here for years, although they have been absent for the last couple of years, presumably because they didn't have anything new to show. The are currently not listed as an Exhibitor, but that could change any time between now and January 25. This would be the most likely U.S. place to debut AL9.

May, 2013, the Frankfurt MusicMesse. The most likely European place to debut AL9.

FabFilter guys are not involved. They said that on their forum. Pretty blatant copying though.
FabFilter guys are not involved. They said that on their forum. Pretty blatant copying though.
FabFilter guys are not involved. They said that on their forum. Pretty blatant copying though.